<template>
	<view class="login-container">
		<uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
    <button type="primary" class="btn-login" @click="getUserInfo">一键登录</button>
    <text class="typs-text">登陆后尽享更多权益</text>
	</view>
</template>

<script>
  import {mapMutations,mapState} from 'vuex'
  
	export default {
		data() {
			return {
				
			};
		},
    computed:{
      ...mapState('m_user',['redirectInfo'])
    },
    methods:{
      ...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
      // 获取用户的基本信息
      getUserInfo(){
        uni.getUserProfile({
          desc:"登录",
          success: (res) => {
            this.updateUserInfo(res.userInfo)
            this.getToken(res)
          },
          fail:() => {
            return uni.$showMsg('您取消了登录授权！')
          }
        })
      },
      async getToken(info){
        // 获取 code 对应的值
        const [err,res] = await uni.login().catch(err => err)
        if(err || res.errMsg !== 'login:ok') return uni.$showMsg('登陆失败！')
        // 准备参数
        const query = {
          code: res.code,
          encryptedData: info.encryptedData,
          iv: info.iv,
          rawData: info.rawData,
          signature: info.signature
        }
        // console.log(query);
        const {data: loginResult} = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        // 假的 token
        this.updateToken('Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjIzLCJpYXQiOjE1NjQ3MzAwNzksImV4cCI6MTAwMTU2NDczMDA3OH0.YPt-XeLnjV-_1ITaXGY2FhxmCe4NvXuRnRB8OMCfnPo')
        // 下面这个函数应该放在更新token之后，因为肯定登陆失败直接return后面的函数不能运行，所以肯前了
        this.navigateBack()
        if(loginResult.meta.status !== 200) return uni.$showMsg('登陆失败！使用的是假的token字符串登陆的')
        
        // 直接把 token 保存到 vuex 中
        // this.updateToken(loginResult.message.token)

      },
      navigateBack(){
        console.log(this.redirectInfo);
        if(this.redirectInfo && this.redirectInfo.openType === 'switchTab') {
          uni.switchTab({
            url: this.redirectInfo.from,
            complete: () => {
              this.updateRedirectInfo(null)
            }
          })
        }
      },
    }
	}
</script>

<style lang="scss">
.login-container{
  height: 750rpx;
  background-color: #F8F8F8;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  
  &::after{
    content: ' ';
    display: block;
    width: 100%;
    height: 40px;
    background-color: white;
    position: absolute;
    bottom: 0;
    left: 0;
    border-radius: 100%;
    transform: translateY(50%);
  }
  .contact-filled{}
  .btn-login{
    width: 90%;
    border-radius: 100px;
    margin: 15px 0;
    background-color: #C00000;
  }
  .typs-text{
    font-size: 12px;
    color: gray;
  }
}
</style>
